Controlling device for water-heating systems.



J. E. GOODWIN. GONTROLLING DEVICE FOR WATER HEATING SYSTEMS. APPLICATION HLED MAY 1e, 1913.

1,095,105. Patented Apr.`28,.1914.

mamies,

TED STATES PATENT FFICE roi-Stn EDWIN. eoonwrir., onine-france3., ldttssltlo11usrrr'rs.-l

courrvonnmennwzron For. Warnniinrrue SYSTEMS.

To all whom it maycmwem:

Be it known that l, JOHN E.` GOODWIN, a citizen of the United States, and'a resident vof Norwood, in the county of Norfolk and State of Massachusetts, have invented a new and Improved Controlling Device for `Water-Heatin Systems, of which the following is a full, c ear, and'exact description.

An object of my invention is" to do away.

with so-called expansion tanks used' in connectionlwith water-heating systems and gen;

erally constituting a source4 of trouble in the system. 4

Another object of the invention is to provide a` simple, inexpensive and reliable device, easily v accessible fgr inspection, and ue to its construction, causes al which, quicker circulation of the water in the pipes ofthe system'therefore permitting a' reduction in'the'diameter ofthe saule.1

' .The above objects are obtained by providing La. casing having two valve-controlled.`

- communicating openings, one of said valves being ,a relief valve and theother a pressure reducing valve.

The tinvention consists of the construction.

and combination of parts to be more fully described hereinafter and, fully setforth in the claim.` r

Reference ris to be had to the accompanying drawings forming a'part'of this specification, in which like characters indicate coilreponding partsv in all thev views and in w 1c `]E`igure 1 is a verticalsection through an,

embodiment of my invention on h'ne1-1,

Fig. 3; Fig. 2 is a section on line. 2-2, 'Fig. -1 in the direction of the arrow.; and Fig. v3

\ is a sectionon line -3-3,` Fig. 1 in the direction of the arrow.

In the a pended drawings, 5 represents the casing ormed of two vertical cylindrical portionsv 6 and 7 united by a web 8 and also bya horizontally disposed cylindrical erably ianged at the ends s o as to rein the structure. The cylindrical portion 6 of portion 9. The cylindrical portions are prefthe casing 5 isl provided with -a`\ central ,l v through bore divided into three parts. The

portionY 10 of the Abore ends\in a valve sea 11 entering the portion 12 provided with guides 13 for the valve 14 contacting with the valve seat 11. The distance between the diametrically opposite guides 13 is substantially equal `to the major',v diameter of the valve 14 and to the diameter of'the third Specification o i Letters latexi'. Applicationdled. May 16, 19.13;; Serial N4).- 7685026; l

ratenteanpr. 28, 1914,

portion 15 of the bore. 'Ehe valve' 14 'is provided;witli,a stem. 16 engaged in .a tubular' member 17 having a headf18 yfitting snugly into the bore 15, this. head'18 form- 4ing-a. guide for-the tubular 'member -17 in the bore 15. v Interposed between the valve 141 and. thel headr 18 and. engagingVA the stem landthe. tubular member 17 is a coil spring 19- tending. toseparate the valve from the member 17. Engaging. the end of, the bore 15.is a threadedplug-20-carrying centrally a screw 21 wl1ich=engagesthe head 18gofthemember. 17,. The screw 21 is also provided with a loclrnutA 22. By means'of this-screw theresiliency of the spring. can bel varied.

The.cylindricalportion 7 of theAcasing' is similarly provided with a. through central bore div-,ided'into three parts but disposed oppositeiy to the parts of the borev in portion 6.' That, is, the portion vof the bore 23 similarl to portion: 10 is at the opposite end of the casing-5. It ends, similar-ly, ina valve seat 24 entering the second -part of the bore.

and tubular member similarly to the coilI spring 19 previously described. From the bove description it can be seen that all the parts in the cylindrical portion 7 are similai' and in same relation yas the parts in cylindrical portion 6.

provided with a central bore 36 establishing communication between the bore 23 of the" cylindrical portion 7 and bore 15 of cylin- .drical portion 6.l The bore 36 has a threaded outlet 37 from the .cylindrical portion 7,

, .0b The horizontal cylindrical portion 9 is the purpose of which will appear hereinafter. The bore 3G, adjacent 'the bore 15 of the cylindrical portion 6, is reduced in diameter so that a valve seat 38 is formed; and engaging this valve seat is a check valv'e39 pivotally mounted on a pin 40. The piri 40 bears in lugs41 inserted from the exterior sides of the cylindrical portion 9. The check valve 39f is passed into position through the threaded outlet 37, which is then closed by a plug 42.

i The bore at the'end ofthe casingv is threaded and receives Athe city water supply pipe;` and the bore 23, similarly threaded at -system is lled with water, i the citysupply being diminished to the desired amount by means of vthe coilfspring 19. Thatis, for example, if

the end of the' casing, is connectedto the bo1ler. By means of the water supply the the pressure of .water is .433 lbs. per ft. If the boiler works on a range ofl expansion of 10 lbs., the valve 27 will have to be made to raise at 30 lbs. pressure; that is, the coil spring 35 is adjusted by means of the screw 33 and lock v nut 34 so as to respond to the boiler pressurev of 80 lbs.-I portion 7 'is provided with a threaded outlet 43 to which a drip pipe is secured and through which the water flowsout when there is an excess of pressure' in the boiler causing the valve 27 to rise. If it is desired to have a higher' speed of the iowing water in the pipes, theipressureV of the water from the city supply can be, raised by reducing the pressure on the valv 14; and to maintain the same expansion range of the boiler of 10 lbs. the compression on the valve 27 is increased lby means of the adjustment of the spring 35. From this it will ollow that while 'the boilerrange remains the same A,the boiler works undera higher pressure'consequently, thespeed of the `Hoyt/ing water will be increased, and that will permit a reduction in the diameter of pips, since the same quantityvof water is use g The purpose of the check/.valve 39, shown in the drawing, is only to prevent the hot the resistance of i The bore 31 inthe cylindrical bores; and a threaded member in said engaging said head r-whereby the tension or water'from the boiler, when there is an excess of pressure, from flowing into the bore 15, whereby it will come in contact with the coil spring 19. As it can be easily seen, the device will operate without the check valve 39, as the tendency of the valve 14 isl to check the iniioW from the citysupply.

The device is 'generally placed near the i boiler, a few feet from the ground, so that the same can be easily accessiblefor inspection. It is understood that the relative tension,of the springs 19 and 35 can bel previously adjusted by knowing the city water The combination of a water-heating sysy tem, including a boiler with a controlling device, comprising a casing having two parallel bores and a transverse bore connect ing the two parallel bores; valvesI in said parallel bores, one controlling the inlet pres-4 sure to the system, ,the other `forming the reliefv for the 'systemand a check valve in the transverse bore,reach of the valves in the parallel bores having a stem; a tubular member having a head fitting snugly into each bore engaging 'said stems; a coil spring on the stem and the tubular member in engagement with the valve and the head and normally tending to .separate the Atubular member from the valve; a plug in each of said plug the springs can be lvaried, substantially as and for the purpose set forth.

In testimony wherpof I have signed my. l

name to this specification in the presence of two subscriblng witnesses.

Witnesses .A

MADELENE ANAsTAsIA SCHELL,'. HENRY EDWARD SGHELL.

JOHN EDWIN coonwiN. 

